Telephone set



FIG. 1 is a top, front, and right side perspective view of a telephone set;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a right view thereof; and,

FIG. 7 is a left view thereof.

THe broken lines are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a telephone set, as shown and described. 